Self -drilling rock bolt, different kinds of R32 R38 T76 T73
Product description Underground construction double corrosion protection anchor bar based on the advanced molding technology, has the characteristics of high-strength, lightweight. Under the prerequisite of ensuring the bolt ultimate tensile strength, reasonable grouting aperture increases, solve the blocking problem. Makes grouting more smoother, fuller and more dense. While reducing the engineering cost and builders working strength, have achieved good results in every aspects. Product nameUnderground construction double corrosion protection anchor bar Length(m)2.0-4.0 Weight(kg/m)12.0-24.0 Outer(mm)38 Innner(mm)19 Ultimate load(kn)500 Yield load400 UsedMine, tunnel, slope, foundation pit Application Tunnelling ground engineering • radial bolting • slope stabilization • forepoling • micro injection pile • face stabilization • temporary support anchor • portal preparation • soil nailing Our company Chengdu luhui anchor material co. Ltd is establish in 2007, specialized in anchor engineering materials research and development production sales. We have developed many years hollow grouting, automatic anchor pole and prestressed anchor rod, all products are strictly in iso9001:2008 of the company quality management system, innovation, quality and credit first is our eternal goal.Our products have been widely used in the domestic railway, highway, hydropower station and the foundation pit of high-rise buildings for many years, and has been unanimously recognized the owner, the engineering company, the construction company, the supervisor. Packing & delivery Packing details: bundle and accessories packed in case Delivery details: 15-30 days -
R25, R32, R38, R51, T76. Depending on the products.
1.Self-drilling anchor bolt has two performance: drilling and grouting. It features a hollow bore for flushing, or simultaneous drilling and grouting. 2.The self-drilling anchor bolt is reliable, efficient and convenient, which makes high piling output possible. 3.Sinorock corrosion protection system: A:hot-dip galvanizing corrosion protection. We can do it according to en iso1461. B:duplex coat system: duplex coat=hot-dip galvanizing+epoxy powder coating.
Tightlok cable bolt is made of steel strand, and has perfect support capacity. Usually be used in the area where common grouted support is vacant or inadequate, and especially good for permanent ground support with some resin cartridge . Features: 1. Has incomparable flexible capacity and anti-shearing capacity. 2. Available in two different diameters with both black and galvanized. 3. Usually packed into roll to save working space, especially in confined areas. 4. Can use the conventional bolting equipment. 5. Specially designed birdcage system can greatly improve the resin mixing and anchorage result. 6. Plain or bulbed options available, bulbs available at either 0.5m or 1m spacing. 7. Fish hooks fitted to cables for retention in holes prior to grouting. 8. Usually matched with Washer, Grip(Barrel & Wedge) and Dome Plate. It is based on the request of each client.
Specificationdiameter (mm) S-16 16 S-18 18 S-20 20 S-22 22 S-25 25 H-25 25/12 H-32 32/14 Depend on the productions
Anchor bolt r25n Outside diameter(mm) 25 Internal diameter (mm ) 14 Ultimate load (kn) 200 Yield load (kn) 150 Weight (kg/m) 2.3 Thread type iso10208 Type of steel en10083-1 Left or right length(m) 1-6m, we can supply any length according to construction require 1-6m Options of anti-corrosion hot-dipped galvanization Usually anchor bar in bundles accessories in carton/pallet also depend on the customer's requirement
(1) roll-formed from high strength steel band with one end tapered tip for easy insertion into a drill hole, the other end has a welded ring for holding the bearing plate. (2) provideimmediate ground support in radial and axial direction. Be good for immediate ground support, but not suitable for very soft strata and permanent support. (3) fast and easy installation with hand held or mechanized bolting equipment. (4) no cement grout and resin cartridge needed. (5) available with both black and galvanized. It is based on the request of each client.
Tightlok grooved bolt is made of hot rolled bar with several forged grooves at one End, usually used for hardrock support. Features: (1) Groove device makes resin mixing easily and completely. (2) Fast and easy installation by mechanized tools. (3) Used together with resin cartridge for permanent support. (4) With pin nut device, nut can help drive the rod to mix the resin. It is based on the request of each client.
Tightlok threadbar bolt is composed of hot rolled ribbed bar, high strength plate , damping nut , yield tube, washer , and other accessories. Usually used in thick coal seams with very high stress and large Deformation. Features: (1) High tensile strength and good support capacity which can prevent the roof from sinking and sliding. (2) Fast and easy installation by mechanized tools. (3) Used together with resin cartridge for permanent support. (4) Sharp end device makes installation easier and faster. (5) Left hand thread direction available. (6) Specially "sandwich"device can buffer and release the pressure.
